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Lewis Machine & Tool
Overview
The LMT Right Side Bolt Catch Pin is a precision-engineered component designed specifically for the MARS-L and MARS-H platforms. Made from durable steel, this pin provides reliable function and stability within the bolt catch assembly, ensuring smooth operation during firearm cycling. This part is commonly found in builds that emphasize versatility and performance in tactical or competitive shooting applications.
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Based on build data

Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK
Takedown Pin
Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas Block
Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom
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Radian Forward Assist - 7075 Aluminum - Black
Forward Assist
Law Tactical AR Folding Stock Adapter Gen 3 - HK
Stock AdapterAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | Takedown Pin | 114 |
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | Gas Block | 93 |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | Lower Receiver | 88 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 81 |
| Radian Forward Assist - 7075 Aluminum - Black | Forward Assist | 79 |
| Law Tactical AR Folding Stock Adapter Gen 3 - HK | Stock Adapter | 79 |
| Platform | Percentage |
|---|---|
| AR-15 | 80.6% |
| AR-10 | 17.2% |
| AR-9 | 2.2% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 67.1% |
| .223 Wylde | 13.7% |
| 300 Blackout | 7.6% |
| .308 Win | 3.5% |
| 9mm | 1.7% |
| .450 Bushmaster | 1.5% |
| 6mm ARC | 1.1% |
| 7.62x39mm | 0.9% |
| .458 SOCOM | 0.7% |
| 6.5 Grendel | 0.6% |
| .223 Remington | 0.6% |
| .204 Ruger | 0.2% |
| .22 LR | 0.2% |
| .224 Valkyrie | 0.2% |
| 6.5 Creedmoor | 0.2% |
| 6.8 SPC II | 0.2% |
| 7.62x51 NATO | 0.2% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 47.4% |
| Carbine | 26.7% |
| Rifle | 14.5% |
| Pistol | 10.1% |
| Blowback | 0.7% |
| Intermediate | 0.4% |
| Proprietary | 0.2% |
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